The paper is concerned with the use of lamps in a non-linear bridge, operating as the ????????indicator???????? of a voltage stabilizer. The characteristics of various types of lamp are considered with regard to their suitability for this purpose, e.g. the effect of ambient temperature and vibration. Experimental and mathematical results are given for the response time of various lamps when used in this circuit. Methods of overcoming this delay by means of suitably designed capacitance-resistance networks are given, together with experimental results. The paper is restricted to the use of a d.c. supply for the bridge.
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